JH's Jimmy Page

[JohnH]

Hi JD

The nicest wiring diagrams online are often done on programs such as Visio, and you can tap into the 'Guitar Stencils Project' for component shapes. You can see examples by Phostenix here on GN2.

But I just use Word, since I'm familiar with it and it's everywhere. The trick is to create yourself a few standard groups of shapes to represent a pot, a switch etc. Then its as quick as any program. When it's done I take a screenshot and post it as a .gif or .png. You can get quite creative with it, but I try to keep simple.

Somehow I've managed not to want to draw a twisted pair.

Since you are developing a new design, you might like to post about it on a new thread in wiring. When it's done, built and working you could then also post in the schematics section with schematic, wiring, photos etc.

[airistubolis]

Based on JHJP Rev 3, CTS pots, 2015 Epiphone Quick Connect Pickups, Modern wiring.

1. What is the correct list of combinations for this?

I am basically going to build 2 harness's. One with Modern wiring and one with 50's wiring. I already have the supplies to build both but am deciding on which diagram to use. Yours is at the top of the list for modern wiring. I have a 2015 Epiphone Les Paul Custom Pro unmodified.

[JD]

@ airistubolis

I'm gonna try the 50's wiring question but you'll need someone with experience to confirm:
the difference between modern and 50's is connecting the tone module to the output of the volume instead of the input. Usually the connection is done via the 22nF cap, but John inverted the cap and the pot (doesn't change a thing electronically speaking), so on your drawing, the switch the wire between volume and tone pots (I think green and red) need to be moved to the middle pin of the volume pots, i.e. on the other side of the treble bleed which, incidentally are not needed in a 50's wiring so should be removed.

I'll leave the other question to people with actual knowledge ^^'.

@ johnh

Yes I've used word too for my circuit diagram, I was asking about how to draw the wiring most people want to see, since they're not all comfortable with circuit diagrams.

[JD]

Oh, and another question:

On Stewmac website they show an alternate way to wire volume control pots: (full page here: Understanding Guitar Wiring, Part 3: How is a volume pot wired? )

Basically in middle position, it avoids cutting everything when only one of the control volume is at 0.

Is it applicable to your design John ?

[JohnH]

i used Word for all my diagrams, including the wiring

if you are building a scheme based on the one on this thread, it has to be modern wiring of pots with the treble bleeds, otherwise the series mode with its independent volumes wont work properly. Other JP schemes us a single volume to control the series mode and one of those would be better if you want to try 50s wiring on a JP. I dont recommend it though.

That reverse wiring of volume pots is a terrible idea for guitars, it solves a problem that is not a problem (if you want one pickup off, better to use the switch instead), but also wrecks the tone when you turn it down by damping the pickup and adding a lot of series resistance to the output. But the guy who played bass in our band liked it for mixing his bass pickups.

Just one thing about how we lay out threads on GN2. This thread is in the Schematics section, where a complete design is posted in post 1 and the rest of the thread is about discussing it, build reports, questions and variations of it. But for new or different ideas and questions, better to put a post in the guitar wiring section

[JD]

And I'm Back !

It took me a while to get to it and even more time to actually wire the thing up (do undo redo repeat...), but I think it's working now !
There may still be some hum cancelling features that aren't right in the guitar but that's easy to fix, I've put connectors on all the wires from the pups and switch so it's relatively easy to change the wires going into the circuit.

I'll Start a new thread soon with all the diagrams and maybe some pictures. When it's up, maybe a mod or admin could move all the posts regarding this branch of the JHJP to the new thread to unclutter John's thread ?
The new thread will reference this one anyway since it's mostly based on it.

Also I've used DIYLC for the wiring, a nice little freeware, it's been mentioned somewhere on this forum, I'll reference it on the new thread.

[georgegty]

Hello,
My first post!
A few days ago I discovered the site and this thread, looking for a treble bleed mod in JP wiring.

First of all, thank Johnh for the nice schematics and for the hours he devoted to sharing with us.

A few months ago I managed to make the wiring from a SD wiring diagram but I am not happy with it, so I have some questions for the updated wiring of 11th October 2020:

Apart from the treble bleed that exists, is there Hum-Cancelling?
Is there any dead position?

Is this (11th October 2020) the last schematic or is there any newer in another thread?

My Guitar is a Korean EPI with Probucker pups.

Thanks in advance

[JohnH]

hi georgegty

Thanks for posting and welcome to GN2!

The October 2020 is the latest I have. Everything is intended to be as hum-cancelling as possible, ie humbuckers and any full two-coil or four-coil combinations both in and out of phase. Obviously single-coil or three-coil mixes can't be, or if you mix a coil from each pickup but one is reduced volume.

There are no dead settings.

One area where various JP schemes vary is in how the series mode works. With JHJP as drawn, you pull the series switch, and the the main toggle is completely bypassed, ie it goes to series on all three positions. This is so you can preset a standard tone on the toggle and then move in or out of series mode with just one switch move.

The other key difference is that in series mode, the two sets of volume and tone controls are still active, and they act only on their respective pickups. This gives a huge range of tones with much clearer variation than parallel mixing. eg Try a neck single with a bit of bridge humbucker with treble muted, added in series.

If you'd like to try it, the first job is to confirm your pickup relative magnetic polarities and applicable wire colours.

[georgegty]

Thank you very much for the quick and explanatory answer!

I will try it in the next few days, I have already convert the colors of cables from SD to Gibson.

Happy New Year,
Peace!

[georgegty]

Ηι !
Finally, today I managed to start it, I just finished soldering, and ... it works perfectly!
Thank you very much!

[JohnH]

Hi georgegty , that's great news and thanks for posting.

There's lots to explore on these. So what are your favourite settings so far?

[rahn]

Is there any place I can buy Revision 3 already pre-wired and ready to just drop in my Les Paul?